That appears to be a Mocom 70 dash mount radio. They did manufacture some and they were often found in things like Cement Trucks and other large heavy machinery with space to put a big radio up front. They had to have everything torqued down inside very tightly as the shaking in that environment would throw a lot of the insides out of tune. In the UHF units, the variactor was a bear to keep running in that environment.
